A blind lady named Sue was flying across country and the airplane landed in Dallas for a short layover. Sue flew often and the captain knew her name. He wanted to stretch his legs a bit so he approached her and asked “Sue do you want to leave the airplane and walk around for a bit?”
“No” said Sue, “but would you mind walking my seeing-eye dog for a few minutes?”
“Sure” he said. It was rather sunny from the large windows in the airport waiting room so he put on his sunglasses.
You can imagine the shocked looks on the people waiting for the plane when they saw the airline pilot walking off the airplane wearing sunglasses with a seeing-eye dog.